LOWER value of working stresses in steel and concrete is adopted, by multiplying the general working stresses by the reduction coefficient. \(C_r= 1.25-\frac{{{l_{eff}}}}{{48D}} \ or\ 1.25-\frac{{{l_{eff}}}}{{48B}}\) where,Cr = Reduction coefficientB and D = Least LATERAL DIMENSION of the columnleff = Effective Length of the columnCalculation:Given,leff = 4.5 MB = 200 mmD = 250 mmCr = 1.25 - 4500/(48 X 200) = 0.78 or 1.25 - 4500/(48 x 250) = 0.875Lesser value adopted, so Cr = 0.78If Effective Length / Least Lateral Dimension > 12, Long column otherwise short.

"> LOWER value of working stresses in steel and concrete is adopted, by multiplying the general working stresses by the reduction coefficient. \(C_r= 1.25-\frac{{{l_{eff}}}}{{48D}} \ or\ 1.25-\frac{{{l_{eff}}}}{{48B}}\) where,Cr = Reduction coefficientB and D = Least LATERAL DIMENSION of the columnleff = Effective Length of the columnCalculation:Given,leff = 4.5 MB = 200 mmD = 250 mmCr = 1.25 - 4500/(48 X 200) = 0.78 or 1.25 - 4500/(48 x 250) = 0.875Lesser value adopted, so Cr = 0.78If Effective Length / Least Lateral Dimension > 12, Long column otherwise short.

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Reduction co- efficient of a reinforced concrete column with an effective length of 4.5 m and size 200 × 250 mm is ______.

Current Affairs General Awareness in Current Affairs 9 months ago

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Concept:In the design of long columns considering the factor of buckling, LOWER value of working stresses in steel and concrete is adopted, by multiplying the general working stresses by the reduction coefficient. \(C_r= 1.25-\frac{{{l_{eff}}}}{{48D}} \ or\ 1.25-\frac{{{l_{eff}}}}{{48B}}\) where,Cr = Reduction coefficientB and D = Least LATERAL DIMENSION of the columnleff = Effective Length of the columnCalculation:Given,leff = 4.5 MB = 200 mmD = 250 mmCr = 1.25 - 4500/(48 X 200) = 0.78 or 1.25 - 4500/(48 x 250) = 0.875Lesser value adopted, so Cr = 0.78If Effective Length / Least Lateral Dimension > 12, Long column otherwise short.

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Posted on 07 Nov 2024, this text provides information on Current Affairs related to General Awareness in Current Affairs. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.

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